Fresh air ventilation system and control method

Abstract

The invention discloses a fresh air ventilation system and a control method. The fresh air ventilation system comprises a range hood, an air inlet device, a pressure detection device and a central control module, wherein the range hood is at least used for discharging air in at least one room outwards, the air inlet device is used for enabling the interior of the at least one room to communicate with an external environment and introducing fresh air into the room, the pressure detection device is used for detecting air pressure in the at least one room and transmitting the air pressure to the central control module, and the central control module is at least used for controlling opening and closing of the air inlet device according to acquired air pressure parameter information. According to the system, the range hood is used as an air discharging device of the fresh air ventilation system, air to be replaced is discharged, cooking fume in a kitchen can be discharged, a function of a common range hood can be achieved, when air in other rooms needs to be replaced, the air in the corresponding rooms can be discharged, fresh air is supplemented in cooperation with the air inlet device, and the air is replaced; and in addition, the pressure detection device can detect the pressure in the room, and the air inlet device and the range hood are determined to act according to a pressure condition in the room.

Description

technical field [0001] The invention belongs to the field of household appliances, and in particular relates to a fresh air ventilation system and a control method. Background technique [0002] At present, with the rapid development of society and the rapid improvement of people's living standards, healthy, energy-saving, simple and reliable fresh air ventilation systems and fresh air equipment have become the focus of general attention of buildings, air-conditioning design and users. Fresh air ventilators are exactly Born out of the above request. Using a fresh air ventilator to replace the indoor air can keep the indoor air fresh. However, a complete fresh air ventilator system is worth a lot, ranging from a few thousand yuan to tens of thousands of yuan, and the installation is more complicated. Ordinary people can popularize and use. However, range hoods have become a must-have item in households, and their penetration rate is very high, and open kitchens are very com...

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Problems solved by technology

[0004] Although the fresh air ventilation device in the above scheme uses the fan of the range hood to extract air, the whole air exchange process is a process of replenishing air while exhausting, and there will be fresh air that has just entered the room and is immediately drawn out by the fan. situation, the efficiency of air exchange is low, and energy is wasted

In addition, the above-mentioned range hood can only ventilate the room by means of exhaust and supplementary air, and the ventilation method is single. Even if the indoor air quality is not very bad, it is necessary to ventilate and supplement the indoor air Renewal, and the temperature is too low or too high in winter and summer, and the fresh air needs to be heated or cooled while making up the air, so a lot of energy is consumed

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